Changes

Second Edition's Ultramarines Codex states that ''it seems likely'' that Legions II and XI ''fought for Horus at least during the beginning of the Heresy''. It also refers to the records as being destroyed following the Heresy.{{Fn|8}} However, this conflicts with more recent information in the novel ''[[The First Heretic (Novel)|The First Heretic]]'' where [[Magnus]] and [[Lorgar]] discuss the two unknown Primarchs and the death of them and their Legions 43 years before the [[Drop Site Massacre]]. {{Fn|18}}

As Horus lay in coma inside the Davinite temple after being wounded by [[Eugen Temba]], [[Erebus]] gave him visions that showed him events from various points in time. In one of these experiences, Horus found himself in the geno-vault where he was created, and looked down upon the genetor-tanks containing the infant Primarchs. At one point he stopped before tank '''XI''' and reflected upon the "untapped glories that lay within, knowing they would never come to pass". This referred to one of the unknown Primarchs. Later on, Horus' anger took control and he smashed his fist upon tank XI, damaging it. Shortly after, a vortex swooped up all the genetor-tanks and scattered them across the galaxy.{{Fn|14}}

The truth of this vision is unclear; it should be noted that the whole experience was orchestrated by the Chaos powers, in other words Horus saw what the Chaos Gods wanted him to see.{{Fn|14}}

When [[Dante]] asked the [[Blood Angels]]' Successor Chapters for men to bring the Blood Angels back to full strength, having suffered heavy casualties during [[Arkio]]'s heresy, [[Gabriel Seth]], Chapter Master of the [[Flesh Tearers]], maked a counter to this demand: disband the Blood Angels and spread them amongst the Successors. When [[Orloc]] (Chapter Master of the [[Blood Drinkers]]) protested that there was no way a First Founding Chapter could end like this, Seth retorted that, actually, it has happened before.{{Fn|16}}